Real–Virtual Fusion Production Scheduling Using Social Contract-based Approach – Effectiveness of Adjusting Virtual System Size –

This report proposes a new concept of an agent-based Real–Virtual Fusion Manufacturing System (RVF-MS), with the aim of dealing with both external and internal fluctuations adaptively and effectively by realizing a fusion between a real production shop floor and a virtual manufacturing system model. This paper presents a proposal of a social-contract-based production scheduling method in RVF-MS, which generates a virtual system with partial components of the system at the operational phase of production. The influence of the generated range of virtual systems on the rescheduling results is confirmed through computational experiments on flexible flow shop problems.